How to merge two fabrics using DCFM?

I would like to merge two fabrics using DCFM Professional Plus (during its evaluation period). I have the following questions:

Is it possible to do this operation without disabling fabric?

I'd like to do it in DCFM by choosing: Configure=>Zoning=>Fabric=>Compare (in Zone DB Operation) then

choose in Reference Zone DBFabric B

choose in Editable Zone DBFabric A

check the FabricB Zone Configuration in Reference Zone DB (FabricB is the name of the Fabric B zone config)

check the FabricA Zone Configuration in Editable Zone DB (FabricA is the name of the Fabric A zone config)

click on the Merge button in order to add all zones and aliases from FabricB to FabricA zone config

the same operation I want to do for Fabric B:

choose in Reference Zone DBFabric A

choose in Editable Zone DBFabric B

check the FabricA Zone Configuration in Reference Zone DB (FabricA is the name of the Fabric A zone config)

check the FabricB Zone Configuration in Editable Zone DB (FabricB is the name of the Fabric A zone config)

click on the Merge button in order to add all zones and aliases from FabricA to FabricB zone config

At this moment I should have two active zone configs having exactly the same entries. Am I correct?

What should be the next step? Maybe to make the ISL connection beetwen the two switches I want to connect into single fabric? But if so, is it not become segmented due to the fact that this two fabrics have different names (zone configuration names - FabricA and FabricB)? Is it possible to merge two fabrics with identical entries (zones names, zones content, alias names, alias content) but with different zone configuration names?

Maybe you know better way of merging two fabrics into single one without disabling it? If so, please tell me about it.

Re: How to merge two fabrics using DCFM?

All the operations I have done on offline databases in DCFM in order to test them. This tool shows no conflicts for zones and aliases beetwen merged zone configs. I changed the config zone names on both fabric from:

FabricA to FabA and from FabricC to FabA

FabricB to FabB and from FabricD to FabB

The problem is that I have never tested such solution. I do not know if it is sufficient to:

change the config names so that they are the same on both fabrics we want to merge,

then activate new zone config sending it (or offline database) to switch,

connect ISLs

Is it everything what I should do to be successful? Will not this operation be disruptive for hosts connected to fabric we want to merge? Will it be done online without disabling switches?

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